Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2007, Vol. 18 ›› Issue (5): 316 doi: Radioactivity monitoring in environmental water and air around QNPP

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Radioactivity monitoring in environmental water and air around QNPP

XIANG Yuanyi WANG Kan ZHANG Yu CAO Zhonggang YE Jida WANG Hongfeng   

  1. Zhejiang Province Environmental Radiation Monitoring Center, Hangzhou 310012,China
XIANG Yuanyi WANG Kan ZHANG Yu CAO Zhonggang YE Jida WANG Hongfeng. Radioactivity monitoring in environmental water and air around QNPP.Nuclear Science and Techniques, 2007, 18(5): 316     doi: Radioactivity monitoring in environmental water and air around QNPP
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Abstract: Results of environmental radioactivity monitoring around Qinshan Nuclear Power Plant (QNPP) are re-ported in this paper. From 1992 to 2005, concentrations of 90Sr, 137Cs and 3H in terrestrial freshwater are (4.4±1.7) mBq•L-1, (0.3±0.1) mBq•L-1 and (1.6±0.5) Bq•L-1, respectively, and (2.8±2.4) Bq•L-1 of 3H in rainwater. Concentra-tions of 90Sr, 137Cs and 3H in the seawater samples collected from sea area nearby QNPP are (5.4±4.1) mBq•L-1, (0.7±0.2) mBq•L-1 and (1.0±0.5) Bq•L-1, respectively. Concentrations of 90Sr, 137Cs and 3H in the total waste water dis-charged from NPP-I are (4.0±1.8) m Bq•L-1, (1.0±0.5) mBq•L-1 and (2.8±2.2) Bq•L-1, respectively, and (1.4±0.4) Bq•L-1 of 3H in seawater sampled from No.1 outlet. Atomspheric 3H concentration in 1993~2005 at two monitoring sites is (78.9±96.3) and (64.2±40.2) mBq•m-3, respectively, with an increasing trend after 2003. Atmospheric 14C con-centrations at the two sites are in the same levels as the background and data of the reference site.

Key words: Environment, Radioactivity, Monitoring, Water, Tritium in air, Carbon-14, QNPP